Question

A _____________________ produces an electric signal when struck by photons. a. dynode b. photomultiplier tube c....

A _____________________ produces an electric signal when struck by photons.

a.

dynode
b.

photomultiplier tube
c.

Czerny-Turner Monochromator
d.

Tungsten Lamp
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Answer #1

Photomultiplier tube produces an electric signal when struck by the photons.

(A) : Dynode is an electrode in a vacuum tube, serves as an electron multiplier through secondary emission.

(B) : Photomultiplier tube: Useful for detection of light at very weak signals and is a photoemissive device that ejects electron after the absorption of protons.

(C): Czerny-Turner monochromator: Spatially separates polychromatic light into series of monochromatic rays.

(D): Tungsten lamp: employed as the source of Visible light

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